74098845 has 12 divisors (see below), whose sum is σ = 128438076. Its totient is φ = 39519360.

The previous prime is 74098811. The next prime is 74098877. The reversal of 74098845 is 54889047.

It can be written as a sum of positive squares in 2 ways, for example, as 33419961 + 40678884 = 5781^2 + 6378^2 .

It is not a de Polignac number, because 74098845 - 2⁶ = 74098781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1646641 = 74098845 / (7 + 4 + 0 + 9 + 8 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 74098845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823276 + ... + 823365.

It is an arithmetic number, because the mean of its divisors is an integer number (10703173).

Almost surely, 2^74098845 is an apocalyptic number.

It is an amenable number.

74098845 is a deficient number, since it is larger than the sum of its proper divisors (54339231).

74098845 is a wasteful number, since it uses less digits than its factorization.

74098845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646652 (or 1646649 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 74098845 is about 8608.0685987044. The cubic root of 74098845 is about 420.0204921974.

The spelling of 74098845 in words is "seventy-four million, ninety-eight thousand, eight hundred forty-five".